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Phys.org / Planned 1.7 million satellites 'devastating' for astronomy: Study

The 1.7 million satellites that companies are aiming to launch into Earth's orbit in the coming years will have "devastating consequences for astronomy," new research warned Wednesday.

Jul 4, 2026
Phys.org / Quantum gravity tests may mistake ordinary spacetime for superposition

Everything around us, from atoms and molecules to planets and galaxies, is governed by two extraordinarily successful theories of physics: quantum mechanics and gravity. Quantum mechanics explains the behavior of the microscopic ...

Jul 2, 2026
Phys.org / What makes a star a star? A strange 'in‑between' celestial object is testing astronomers' boundaries

A star called TOI-2155 lies around 1,350 light-years (839 trillion miles) from Earth. It is a little bigger, heavier and hotter than the sun, and it is not particularly interesting or unusual in itself.

Jul 2, 2026
Phys.org / Rare color shifting discovered in iconic Australian frog

University of Newcastle researchers have documented one of the clearest examples of iridescence ever recorded in an amphibian, revealing that the endangered green and golden bell frog (Ranoidea aurea) possesses intricate ...

Jul 7, 2026
Phys.org / Greenland meltwater adds to AMOC weakening, but updated model finds no tipping point in sight

The state of the Atlantic Meridional Overturning Circulation (AMOC) has been a hot topic among climate scientists in recent years. The AMOC is crucial for climate regulation because it pulls warm surface water from the tropics ...

Jul 4, 2026
Phys.org / NASA's New Horizons spacecraft wakes from its longest hibernation in good health

Following its longest hibernation period ever of nearly a year, NASA's New Horizons spacecraft has emerged in good health and is ready to begin transmitting science data gathered in the distant Kuiper Belt far beyond Pluto.

Jul 7, 2026
Phys.org / Paleontologists make 'one in a million' discovery of soft tissue preserved in 450-million-year-old fossil

Before the oldest dinosaur, before animals or even plants had expanded onto dry land, ancient relatives of starfish called crinoids, resembling stalked sea flowers, were among the first creatures to flourish in Earth's earliest ...

Jul 6, 2026
Phys.org / Spontaneous current loops in a kagome metal point to hidden quantum order

Quantum materials, materials exhibiting physical behavior governed by the laws of quantum mechanics, have proved promising for the development of numerous advanced technologies, including quantum technologies, memory devices ...

Jul 2, 2026
Phys.org / Analog gravity advance offers new insights into Hawking radiation from black holes

Hawking radiation is a form of radiation emitted by black holes, as theoretically predicted by Stephen Hawking. It suggests that black holes do not merely swallow matter—as had previously been assumed—but also emit very faint ...

Jul 2, 2026
Phys.org / Quantum semiconductor design could expand search for dark matter

Dark matter accounts for 85% of the matter in the universe, but scientists still do not know what it is made of. A study, published in Physical Review Letters, by Rice University researchers proposes a detector design that ...

Jul 2, 2026
Phys.org / Why Europe's trees are dying

In Europe, trees are increasingly dying prematurely. A new study by the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) on French forests now shows that it is not only drought but also unusually warm ...

Jul 7, 2026
Phys.org / Metallic rutile oxides break the rules of cooling

Physicists have long puzzled over a strange contradiction inside a family of minerals called rutile oxides. These materials all share the same crystal structure—but while some of them, like titanium dioxide, are firmly insulating, ...

Jul 7, 2026